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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The viscosity of water is __________ than that of mercury.

Higher
Same as
Lower
None of these

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Hydraulics and Fluid Mechanics in ME
Newton's law of viscosity is a relationship between

Rate of shear strain and temperature
Pressure, velocity and temperature
Shear stress and rate of shear strain
Shear stress and velocity

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Hydraulics and Fluid Mechanics in ME
In a static fluid

Linear deformation is small
Resistance to shear stress is small
Only normal stresses can exist
Fluid pressure is zero

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Hydraulics and Fluid Mechanics in ME
The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

Double
Equal to
Three fourth
One-half

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Hydraulics and Fluid Mechanics in ME
Which of the following instruments is used to measure flow on the application of Bernoulli’s theorem

Orifice plate
Venturimeter
pitot tube
All of these

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Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2000 is called

Sub-sonic velocity
Higher critical velocity
Super-sonic velocity
Lower critical velocity

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